- Adhesives
Desmocoll® 621/2
Predominantly linear hydroxyl polyurethane. Desmocoll® 621/2 is a flexible polyurethane with a high rate of crystallization and low thermoplasticity. It has good adhesion on many flexible PVC substrates. Desmocoll® 621/2 is characterized in particular by its long tack live after thermal activation.
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About
Product Types
- PU resin
Material
- Adhesives
- Solventborne, Heat activated
General Characterization
Predominantly linear hydroxyl polyurethane.
Desmocoll® 621/2 is a flexible polyurethane with a high rate of crystallization and low thermoplasticity. It has good adhesion on many flexible PVC substrates. Desmocoll® 621/2 is characterized in particular by its long tack live after thermal activation.
Desmocoll® 621/2 is a flexible polyurethane with a high rate of crystallization and low thermoplasticity. It has good adhesion on many flexible PVC substrates. Desmocoll® 621/2 is characterized in particular by its long tack live after thermal activation.
Storage Conditions
- Storage in original sealed Covestro containers.
- Recommended storage temperature: 10 - 25 °C.
- Protect from direct sunlight, moisture, heat and foreign material.
- Recommended storage temperature: 10 - 25 °C.
- Protect from direct sunlight, moisture, heat and foreign material.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Heat resistance | ASTM D 816 | °C | approx. 70 |
| Hydroxyl content | DIN 53 240 | % | < 0.1 |
| Minimum activation temperature | DIN EN 12961 | °C | approx. 55 |
| Bondability of materials containing plasticisers | DIN EN 15307 | very good | |
| Hot tack life | DIN EN 12961 | min | approx. 8 |
| Density | DIN EN ISO 2811 | g/ml | approx. 1.2 |
| Crystallization | DIN 53 505 | h | approx. 2 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Solution viscosity, 15 % inbutanone-2 (MEK) at 23 °C, Haake | DIN EN ISO 3219/A.3 | mPa*s | 2,600 ± 500 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
